Everolimus and Letrozole in Treating Patients With Recurrent Hormone Receptor Positive Ovarian, Fallopian Tube, or Primary Peritoneal Cavity Cancer


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Jacksonville, Florida: 14-004778
    • Rochester, Minnesota: 14-004778
    NCT ID: NCT02283658
    Sponsor Protocol Number: MC1464

About this study

This pilot, phase II trial studies how well everolimus and letrozole work in treating patients with hormone receptor positive ovarian, fallopian tube, or primary peritoneal cavity cancer that has come back. Everolimus and letrozole may stop the growth of tumor cells by blocking some the enzymes needed for cell growth.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Histologically confirmed estrogen receptor positive (greater than 10%) recurrent ovarian, fallopian tube or primary peritoneal carcinoma in post-menopausal women; note: pure clear cell and pure mucinous carcinomas are ineligible; both platinum sensitive, platinum resistant and platinum refractory disease are eligible; no limitations in the number of prior regimens
  • Patient has disease amenable to biopsy and is agreeable to undergo a biopsy; note: under unusual circumstances, submission of ascites material may be acceptable if a biopsy is not possible; this will require approval by one of the study principal investigators
  • Measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST) criteria
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2
  • Absolute neutrophil count (ANC) ≥ 1500/mm^3
  • Platelet count ≥ 100,000/mm^3
  • Hemoglobin > 9.0 g/dL
  • Total serum bilirubin ≤ 2 mg/dL
  • Aspartate transaminase (AST) ≤ 2.5 x upper limit of normal (ULN) (≤ 5 x ULN in patients with liver metastasis)
  • International normalized ratio (INR) ≤ 2
  • Creatinine ≤ 1.5 x ULN
  • Fasting serum cholesterol ≤ 300 mg/dL or ≤ 7.75 mmol/L and fasting triglycerides ≤ 2.5 x ULN; in case of any of these thresholds be exceeded, the patient can only be included after initiation of appropriate lipid lowering medications
  • Provide informed written consent
  • Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)
  • Willing to provide tissue samples for correlative research purposes

Exclusion Criteria:

  • Any of the following

    • Pregnant women
    • Nursing women
  • Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens including but not limited to any of the following that would limit compliance with study requirements:

    • Ongoing or active severe infection
    • Liver disease such as cirrhosis
    • Decompensated liver disease
    • Symptomatic congestive heart failure (New York heart Association class III or IV)
    • Unstable angina pectoris, serious uncontrolled cardiac arrhythmia, myocardial infarction ≤ 6 months prior to registration
    • Known severely impaired lung function (spirometry and diffusing capacity of the lung for carbon monoxide [DLCO] 50% or less of normal and oxygen [O2] saturation 88% or less at rest on room air)
    • Active bleeding diathesis
    • Psychiatric illness
  • Known to be human immunodeficiency virus (HIV) positive
  • Receiving any other investigational agent ≤ 4 weeks prior to registration which would be considered as treatment for the primary neoplasm
  • Other active malignancy ≤ 3 years prior to registration; exceptions: non-melanotic skin cancer or carcinoma-in-situ of the cervix, uterus or breast; note: if there is a history of prior malignancy, they must not be receiving other specific treatment for their cancer
  • Patients currently receiving anticancer therapies or who have received anticancer therapies ≤ 4 weeks prior to registration (including chemotherapy, radiation therapy, antibody based therapy, etc.)
  • Known intolerance or hypersensitivity to everolimus or other rapamycin analogs (e.g. sirolimus, temsirolimus)
  • Known impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of oral everolimus
  • Uncontrolled diabetes mellitus as defined by hemoglobin (Hb)A1c > 8% despite adequate therapy; note: patients with a known history of impaired fasting glucose or diabetes mellitus (DM) may be included, however blood glucose and antidiabetic treatment must be monitored closely throughout the trial and adjusted as necessary
  • Chronic treatment with corticosteroids or other immunosuppressive agents; note: topical or inhaled corticosteroids are allowed
  • Patients who have received live attenuated vaccines ≤ 1 week prior to registration and during the study; note: patient should also avoid close contact with others who have received live attenuated vaccines; examples of live attenuated vaccines include intranasal influenza, measles, mumps, rubella, oral polio, Bacillus Calmette-Guerin (BCG), yellow fever, varicella and TY21a typhoid vaccines
  • History of non-compliance to medical regimens or who are considered potentially unreliable or will not be able to complete the entire study
  • Prior therapy with everolimus or an aromatase inhibitor
  • Known brain metastasis
  • Active and chronic viral hepatitis (i.e. quantifiable serum hepatitis B virus [HBV]-deoxyribonucleic acid [DNA] and/or positive hepatitis B virus surface antigen [HBsAg], or quantifiable hepatitis C virus [HCV]-ribonucleic acid [RNA] in serum)

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Jacksonville, Fla.

Mayo Clinic principal investigator

Gerardo Colon-Otero, M.D.

Closed for enrollment

Contact information:

Research Information Center


Rochester, Minn.

Mayo Clinic principal investigator

Gerardo Colon-Otero, M.D.

Closed for enrollment

Contact information:

Research Information Center


Additional contact information

Cancer-related trials contact form

Phone: 855-776-0015 (toll-free)

International patient clinical studies questions